Describe the growing problems in dealing with e-waste
What will be an ideal response?
E-wastes include cell phones, computer components, FAX machines, televisions, VCRs and other electronic equipment. Many are turning up in landfills. These items contain heavy metals and flame retardants, which make them candidates for hazardous waste designation. This designation would keep them out of ordinary landfills. Many discarded electronic devices can be disassembled for recycling. There are many businesses and nonprofit groups that collect items for recycling. Because of the toxic materials risk, guidelines for the recycling industry need to be developed. Although recycling rates have improved in the last decade, approximately 60% of e-wastes are still ending up in landfills and incinerators.
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The oldest well-documented stromatolites occur in the ____
A)Hadean B)Archean C)Paleoproterozoic D)Mesoproterozoic E)Neoproterozoic
Trace on a map the prehistoric peopling of the Pacific
What will be an ideal response?
What are reserves?
A) quantities that are known and available for exploitation with current technologies at current prices B) substances that are known to exist, but are held back to save them for the future C) estimates of the quantities likely to be discovered with greater exploration D) all substances that may someday be used E) resources that have been mined, but are currently in storage and will be utilized when prices rise
Criticisms of neoclassical economic theory include all of the following EXCEPT
A) it has a lack of historical or social context. B) this theory does not represent consumption as a social act as well as an economic one. C) it assumes that people's choices don't affect each other. D) humans generally act rationally in economic matters. E) it is difficult to reduce social problems to individual causes and solutions.